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Proceedings Paper

Spatial noise of high-resolution liquid-crystal displays for medical imaging: quantitative analysis, estimation, and compensation
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Paper Abstract

Recent developments in Liquid Crystal Display (LCD) technology suggest that they will replace the Cathode Ray Tube (CRT) as the most common softcopy display in the medical arena. But LCDs are far from ideal for medical imaging. One of the problems they possess is spatial noise. This paper presents some work we have conducted recently on spatial noise of high resolution LCDs. The purpose of this work is to explore the properties of spatial noise and the method to reduce them. A high quality CCD camera is used for physical evaluation. Spatial noise properties are analyzed and estimated from the camera images via signal modeling and processing. Noise compensation algorithm based on error diffusion is developed to process images before they are displayed. Some initial results shown in this paper suggest that LCD spatial noise can be eliminated via appropriate processing.

Paper Details

Date Published: 5 May 2004
PDF: 11 pages
Proc. SPIE 5367, Medical Imaging 2004: Visualization, Image-Guided Procedures, and Display, (5 May 2004); doi: 10.1117/12.536026
Show Author Affiliations
Jiahua Fan, Univ. of Arizona (United States)
William J. Dallas, Univ. of Arizona (United States)
Hans Roehrig, Univ. of Arizona (United States)
Elizabeth A. Krupinski, Univ. of Arizona (United States)
Kunal Gandhi, Univ. of Arizona (United States)
Malur K. Sundareshan, Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 5367:
Medical Imaging 2004: Visualization, Image-Guided Procedures, and Display
Robert L. Galloway, Editor(s)

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